International aid agencies expressed rising alarm Friday over the humanitarian disaster consuming Yemen , as airstrikes and street fighting have intensified and nearly paralyzed essential services. Air assaults by the Saudi-led coalition struck Sana, Yemen’s capital, on Thursday night and Friday, said Cedric Schweizer, head of delegation for the International Committee of the Red Cross in Sana. According to the United Nations, 18 of Yemen’s 22 provinces now have been hit by airstrikes, in which an American-backed alliance of Arab states led by the Saudis has been bombing the Houthis, a northern Yemen militia organization supported by Iran . The Houthis and their allies in Yemen’s armed forces have […]